国内英语资讯:Metasequoia fossil discovered in southwest China
<p><span word="BEIJING">BEIJING</span>, <span word="April">April</span> 6-- <span word="Chinese">Chinese</span> <span word="researchers">researchers</span> <span word="have">have</span> <span word="discovered">discovered</span> <span word="a">a</span> <span word="Metasequoia">Metasequoia</span> <span word="fossil">fossil</span> <span word="in">in</span> <span word="southwest">southwest</span> <span word="China">China</span>, <span word="the">the</span> <span word="furthest">furthest</span> <span word="south">south</span> <span word="such">such</span> <span word="a">a</span> <span word="fossil">fossil</span> <span word="that">that</span> <span word="has">has</span> <span word="ever">ever</span> <span word="been">been</span> <span word="discovered">discovered</span>, <span word="revealing">revealing</span> <span word="a">a</span> <span word="possible">possible</span> <span word="cause">cause</span> <span word="for">for</span> <span word="the">the</span> <span word="Metasequoia">Metasequoia</span>'<span word="s">s</span> <span word="disappearance">disappearance</span> <span word="in">in</span> <span word="the">the</span> <span word="region">region</span>.</p><p><span word="Numerous">Numerous</span> <span word="well">well</span>-<span word="preserved">preserved</span> <span word="leafy">leafy</span> <span word="shoots">shoots</span> <span word="and">and</span> <span word="seed">seed</span> <span word="cones">cones</span> <span word="of">of</span> <span word="Metasequoia">Metasequoia</span> <span word="have">have</span> <span word="been">been</span> <span word="brought">brought</span> <span word="to">to</span> <span word="light">light</span> <span word="after">after</span> <span word="a">a</span> <span word="deep">deep</span> <span word="sleep">sleep</span> <span word="of">of</span> <span word="between">between</span> <span word="about">about</span> 16-11 <span word="million">million</span> <span word="years">years</span> <span word="ago">ago</span> <span word="at">at</span> <span word="the">the</span> <span word="middle">middle</span> <span word="Miocene">Miocene</span> <span word="deposits">deposits</span> <span word="in">in</span> <span word="Sanzhangtian">Sanzhangtian</span> <span word="village">village</span>, <span word="southwest">southwest</span> <span word="China">China</span>'<span word="s">s</span> <span word="Yunnan">Yunnan</span> <span word="Province">Province</span>, <span word="by">by</span> <span word="researchers">researchers</span> <span word="from">from</span> <span word="Xishuangbanna">Xishuangbanna</span> <span word="Tropical">Tropical</span> <span word="Botanical">Botanical</span> <span word="Garden">Garden</span>.</p><p><span word="The">The</span> <span word="Metasequoia">Metasequoia</span> <span word="is">is</span> <span word="an">an</span> <span word="ancient">ancient</span> <span word="plant">plant</span> <span word="with">with</span> <span word="a">a</span> <span word="narrow">narrow</span> <span word="natural">natural</span> <span word="distribution">distribution</span> <span word="in">in</span> <span word="central">central</span> <span word="China">China</span>. <span word="study">study</span> <span word="of">of</span> <span word="its">its</span> <span word="fossils">fossils</span> <span word="will">will</span> <span word="enable">enable</span> <span word="researchers">researchers</span> <span word="to">to</span> <span word="understand">understand</span> <span word="how">how</span> <span word="conifer">conifer</span> <span word="plants">plants</span> <span word="distribute">distribute</span> <span word="spatially">spatially</span> <span word="and">and</span> <span word="respond">respond</span> <span word="to">to</span> <span word="climate">climate</span> <span word="change">change</span></p><p><span word="As">As</span> <span word="the">the</span> <span word="first">first</span> <span word="Metasequoia">Metasequoia</span> <span word="fossil">fossil</span> <span word="in">in</span> <span word="southwest">southwest</span> <span word="China">China</span> <span word="and">and</span> <span word="the">the</span> <span word="southernmost">southernmost</span> <span word="fossil">fossil</span> <span word="of">of</span> <span word="the">the</span> <span word="genus">genus</span> <span word="around">around</span> <span word="the">the</span> <span word="world">world</span>, <span word="the">the</span> <span word="newfound">newfound</span> <span word="fossils">fossils</span> <span word="considerably">considerably</span> <span word="expands">expands</span> <span word="the">the</span> <span word="spatial">spatial</span> <span word="distribution">distribution</span> <span word="range">range</span> <span word="of">of</span> <span word="Metasequoia">Metasequoia</span> <span word="in">in</span> <span word="the">the</span> <span word="geological">geological</span> <span word="past">past</span>.</p><p><span word="According">According</span> <span word="to">to</span> <span word="the">the</span> <span word="research">research</span> <span word="published">published</span> <span word="in">in</span> <span word="Review">Review</span> <span word="of">of</span> <span word="Palaeobotany">Palaeobotany</span> <span word="and">and</span> <span word="Palynology">Palynology</span>, <span word="the">the</span> <span word="disappearance">disappearance</span> <span word="of">of</span> <span word="Metasequoia">Metasequoia</span> <span word="in">in</span> <span word="southwest">southwest</span> <span word="China">China</span> <span word="might">might</span> <span word="be">be</span> <span word="related">related</span> <span word="to">to</span> <span word="the">the</span> <span word="evolutionary">evolutionary</span> <span word="stasis">stasis</span> <span word="of">of</span> <span word="Metasequoia">Metasequoia</span>, <span word="most">most</span> <span word="likely">likely</span> <span word="preventing">preventing</span> <span word="necessary">necessary</span> <span word="adaptations">adaptations</span> <span word="to">to</span> <span word="increasing">increasing</span> <span word="winter">winter</span> <span word="and">and</span> <span word="spring">spring</span> <span word="aridity">aridity</span> <span word="induced">induced</span> <span word="by">by</span> <span word="the">the</span> <span word="intensification">intensification</span> <span word="of">of</span> <span word="the">the</span> <span word="Asian">Asian</span> <span word="monsoon">monsoon</span> <span word="in">in</span> <span word="this">this</span> <span word="region">region</span> <span word="during">during</span> <span word="the">the</span> <span word="Neogene">Neogene</span>.</p><p><span word="The">The</span> <span word="research">research</span> <span word="is">is</span> <span word="also">also</span> <span word="supported">supported</span> <span word="by">by</span> <span word="the">the</span> <span word="Senckenberg">Senckenberg</span> <span word="Nature">Nature</span> <span word="Museum">Museum</span> <span word="in">in</span> <span word="Germany">Germany</span>.</p>
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